If your automatic washer fills with water but refuses to start the agitation or wash cycle, you are facing a common mechanical or electronic failure. This guide explores the primary culprits, including faulty lid switches,…
| Component |
Function |
Failure Symptom |
| Lid Switch / Door Lock |
Safety interrupt for the motor circuit. |
Machine fills but won’t agitate or spin. |
| Water Level Switch |
Detects air pressure from the tub. |
Machine keeps filling or stops without starting motor. |
| Drive Motor / Capacitor |
Provides mechanical rotation. |
Hum sounds but no movement; dead silence if open circuit. |
| Drive Belt |
Transfers power from motor to drum. |
Motor runs (hums/whirs) but the drum is stationary. |
| Feature |
Mechanical Pressure Switch |
Electronic Hall Effect Sensor |
| Signal Type |
Discrete (On/Off) |
Analog/Digital Frequency |
| Reliability |
Prone to contact pitting |
Highly reliable but sensitive to moisture |
| Common Use |
Traditional Top Loaders |
Modern Inverter Front Loaders |
| Voltage |
Usually 120V/240V AC |
5V – 12V DC |
The Panasonic QB86C18GAX5 is a 1/4 HP reciprocating compressor engineered for high-efficiency Low Back Pressure (LBP) applications. Using R134a refrigerant and a displacement of 8.6cc, it delivers a cooling capacity of 201W. This guide provides…
| Feature |
Details |
| Model |
QB86C18GAX5 |
| Utilisation |
LBP (Low Back Pressure) |
| Domaine |
Freezing / Deep Cooling |
| Oil Type and Quantity |
Ester Oil (POE) / 230 ml |
| Horsepower (HP) |
1/4 HP |
| Refrigerant Type |
R134a |
| Power Supply |
220-240V / 50Hz / 1PH |
| Cooling Capacity BTU |
686 BTU/h (approx. 201W) |
| Motor Type |
RSIR (Resistance Start – Induction Run) |
| Displacement |
8.6 cm³ |
| Winding Material |
Copper |
| Pressure Charge |
0.4 to 1.1 Bar (Suction Side) |
| Capillary Recommendation |
0.036″ / 0.042″ (Dependent on cabinet size) |
| Refrigerator Models |
Large domestic side-by-side, Chest Freezers, Display Chillers |
| Temperature Function |
-35°C to -15°C |
| Fan Requirement |
Optional (Static cooling usually sufficient) |
| Commercial Use |
Light Commercial / Domestic High-Capacity |
| Amperage (RLA) |
1.1A – 1.3A |
| LRA (Locked Rotor Amps) |
8.0A |
| Type of Relay |
PTC Relay |
| Capacitor |
N/A (Standard RSIR) |
The LG KX69LBEG is a high-performance 1/5 HP reciprocating compressor designed for Low Back Pressure (LBP) domestic refrigeration. Operating on R134a refrigerant at 220-240V/50Hz, this thermally protected unit is the standard for LG’s cooling reliability.…
| Feature |
Details |
| Model |
KX69LBEG |
| Utilisation |
LBP (Low Back Pressure) |
| Domaine |
Freezing / Deep Cooling |
| Oil Type and Quantity |
POE or Mineral (R134a compatible) / approx. 180-220ml |
| Horsepower (HP) |
1/5 HP |
| Refrigerant Type |
R134a |
| Power Supply |
220-240V / 50Hz / 1PH |
| Cooling Capacity BTU |
Approx. 580 – 620 BTU/h |
| Motor Type |
RSIR (Resistance Start – Induction Run) |
| Displacement |
6.9 cm³ |
| Winding Material |
Copper |
| Pressure Charge (Suction) |
0.5 to 1.2 Bar (Depending on application) |
| Capillary Recommendation |
0.031″ or 0.036″ (Length varies by cabinet) |
| Refrigerator Models |
LG GR-Series, Domestic Single/Double Door units |
| Temperature Function |
-35°C to -10°C |
| Fan Requirement |
Static Cooling (No fan required for compressor) |
| Commercial Use |
No (Domestic / Light Residential) |
| Amperage (RLA) |
0.9A – 1.1A |
| LRA (Locked Rotor Amps) |
5.5A – 6.0A |
| Type of Relay |
PTC Relay |
| Capacitor |
Not required (RSIR), optional Start Cap for high torque |
The Donper S118CY1 compressor is a cornerstone of modern domestic refrigeration, engineered for high efficiency in Low Back Pressure (LBP) environments. Utilizing R600a refrigerant, this 1/4 HP unit provides reliable cooling for large household refrigerators…
| Feature |
Specification |
| Model |
S118CY1 |
| Utilisation |
LBP (Low Back Pressure) |
| Domaine |
Freezing / Deep Cooling |
| Oil Type and Quantity |
Mineral or POE (Consult label), ~180ml – 220ml |
| Horsepower (HP) |
1/4 HP |
| Refrigerant Type |
R600a (Isobutane) |
| Power Supply |
220-240V ~ 50Hz, 1 Phase |
| Cooling Capacity BTU |
Approx. 715 BTU/h (at -23.3°C) |
| Motor Type |
RSIR (Resistance Start – Induction Run) |
| Displacement |
11.8 cm³ |
| Winding Material |
High-Grade Copper |
| Pressure Charge |
Low side (suction) depends on ambient |
| Capillary Tube |
0.031″ to 0.036″ (Internal Diameter) |
| Compatible Appliances |
Large domestic refrigerators, display freezers |
| Temperature Function |
-35°C to -15°C |
| Cooling Method |
Static or Fan cooling (application dependent) |
| Commercial/Residential |
Residential / Light Commercial |
| Amperage (RLA) |
0.9 A – 1.2 A (running) |
| LRA (Locked Rotor Amps) |
6.5 A – 7.5 A |
| Type of Relay |
PTC Start Relay |
| Capacitor |
Often not required (RSIR), optional Run Capacitor |
The White Point WPMR91S is a high-efficiency 91-liter refrigerator utilizing a specialized 13-gram R600a refrigerant charge. Operating at 0.50A, this Turkish-made unit is designed for optimal LBP performance. This guide provides comprehensive technical specifications, compressor…
| Feature |
Details |
| Model |
White Point WPMR91S |
| Utilization |
LBP (Low Back Pressure) |
| Domaine |
Cooling (Mini-Bar / Domestic Refrigerator) |
| Oil Type and Quantity |
Mineral or Ester Oil (approx. 160ml) |
| Horsepower (HP) |
1/12 HP |
| Refrigerant Type |
R600a (Isobutane) |
| Power Supply |
220-240V / 50Hz |
| Cooling Capacity BTU |
Approx. 310 BTU/h |
| Motor Type |
RSIR (Resistance Start – Induction Run) |
| Displacement |
4.0 cm³ to 4.5 cm³ |
| Winding Material |
Copper |
| Pression Charge |
0.5 to 1 PSI (Low side running) |
| Capillary |
0.026 ID |
| Compatible Models |
Compact refrigerators, Under-counter coolers |
| Temperature Function |
+5°C to -18°C (Internal) |
| With Fan or No |
No (Static Cooling) |
| Commercial or No |
No (Domestic) |
| Amperage in Function |
0.50 A |
| LRA |
2.6 A |
| Type of Relay |
PTC Relay |
| Capacitor |
No (Standard RSIR) |
| Technical Parameter |
WPMR91S (R600a) |
Equivalent R134a Unit |
| Mass Charge |
13g |
~45g – 60g |
| Operating Pressure |
Below Atmospheric (Vacuum) |
Positive Pressure |
| COP (Efficiency) |
Higher |
Lower |
| Environmental Impact |
GWP 3 (Eco-Friendly) |
GWP 1430 (High Impact) |
The Evvoli EVCIS-24K-MD is a robust 2.5 HP rotary compressor designed for 24,000 BTU split-type air conditioners. Running on R410A refrigerant with a 20.0A rated current, it offers high-efficiency cooling and heating (26,000 BTU). This…
| Attribute |
Specification Details |
| Model |
EVCIS-24K-MD |
| Utilisation (mbp/hbp/lbp) |
HBP (High Back Pressure) |
| Domaine (Freezing/Cooling) |
Air Conditioning (Cooling & Heating) |
| Oil Type and quantity |
POE Oil (Polyolester) / Approx. 650ml – 750ml |
| Horsepower (HP) |
2.5 HP |
| Refrigerant Type |
R410A |
| Power Supply |
220-240V ~ 50Hz, 1Ph |
| Cooling Capacity BTU |
24,000 Btu/h |
| Heating Capacity BTU |
26,000 Btu/h |
| Motor Type |
Rotary (CSR/PSC) |
| Displacement |
22.0 to 25.0 cm³ |
| Winding Material |
High-Grade Copper |
| Pression Charge |
Discharge: 4.2MPa / Suction: 1.5MPa |
| Capillary |
0.070″ – 0.080″ ID (Typical for 2.0 Ton) |
| Modele Refrigerator Compatibility |
Not for refrigerators; designed for Split AC Units |
| Temperature function |
T1 Climate (-7°C to +43°C) |
| With fan or no |
Yes (External Condenser Fan required) |
| Commercial or no |
Light Commercial / Residential |
| Amperage in function |
20.0 A (Maximum Load) |
| LRA (Locked Rotor Amps) |
62 A – 70 A |
| Type of relay |
Power Contactor / Start Relay |
| Capacitor or no and valeur |
Run Capacitor: 55µF – 60µF / 450V |
The ZMC EGM66AF is a high-reliability 1/6 HP compressor designed for Low Back Pressure (LBP) applications in domestic refrigerators ranging from 10 to 12 feet. Utilizing R134a refrigerant and a 6.66cc displacement, this unit features…
| Feature |
Specification |
| Model |
ZMC EGM66AF |
| Utilization |
LBP (Low Back Pressure) |
| Domaine |
Freezing / Cooling (Domestic) |
| Oil Type and Quantity |
POE / Ester Oil – ~180ml |
| Horsepower (HP) |
1/6 HP |
| Refrigerant Type |
R134a |
| Power Supply |
220-240V ~ 50Hz |
| Cooling Capacity BTU |
~512 BTU/h (at -23.3°C) |
| Motor Type |
RSIR (Resistive Start – Induction Run) |
| Displacement |
6.66 cm³ |
| Winding Material |
High-Grade Copper |
| Pression Charge |
Low side: 0 – 10 PSI (typical) |
| Capillary |
0.031″ ID |
| Model Fridge |
10 – 12 Feet (Kiriazi, Olympic, etc.) |
| Temperature Function |
-35°C to -10°C |
| With Fan or No |
No (Static Cooling) |
| Commercial or No |
No (Residential/Domestic) |
| Amperage in Function |
0.8A to 1.1A |
| LRA |
9.0A |
| Type of Relay |
PTC (Positive Temperature Coefficient) |
| Capacitor |
Generally not required (None) |
| Feature |
ZMC EGM66AF |
Danfoss TLS6F |
Embraco EMY65HLC |
| Displacement |
6.66 cc |
5.70 cc |
5.96 cc |
| Cooling Power |
150 W |
145 W |
158 W |
| Winding Type |
Copper |
Mixed/Copper |
Copper |
Selecting the right electrical components is the heartbeat of refrigeration maintenance. When a compressor fails to start or constantly trips, the culprit is often a mismatched Current Relay or a fatigued Thermal Overload Protector. Ensuring…
| Model |
Compressor Power (HP) |
Terminal Pin |
Applied Current (A) |
| 117U 2010 |
1/3 HP |
5 |
4.5 A |
| 117U 2100 |
1/4 HP |
6 |
3.6 A |
| 117U 2104 |
1/5 HP |
4 |
6.5 A |
| 117U 2050 |
1/2 HP |
1 |
1.4 A |
| Compressor Power (HP) |
Max Connect Current (A) |
Release Current (A) |
| 1/2 HP |
12.5 A |
5.0 A |
| 1/3 HP |
9.0 A |
4.75 A |
| 1/4 HP |
8.0 A |
4.0 A |
| 1/5 HP |
7.5 A |
3.5 A |
| 1/6 HP |
7.0 A |
3.0 A |
The MAQ QD168H is a high-performance 1/4 HP hermetic compressor designed for R134a refrigerant systems. Ideal for domestic refrigerators and freezers, it offers a cooling capacity of approximately 195W. This article provides a deep dive…
| Model |
MAQ QD168H |
| Utilization |
LBP (Low Back Pressure) |
| Domaine |
Freezing / Cooling |
| Oil Type and Quantity |
POE / Mineral – 220ml |
| Horsepower (HP) |
1/4 HP |
| Refrigerant Type |
R134a |
| Power Supply |
220-240V / 50Hz |
| Cooling Capacity |
665 BTU/h (Approx. 195W) |
| Motor Type |
RSIR (Remote Start Induction Run) |
| Displacement |
6.8 cm³ |
| Winding Material |
Copper |
| Pression Charge (Suction) |
0.5 to 1.2 Bar |
| Capillary Recommendation |
0.031″ to 0.036″ |
| Compatible Appliance |
Double door fridge (1.5m) / Chest Freezer |
| Temperature Function |
-35°C to -15°C |
| Cooling Method |
Static (Natural Convection) |
| Commercial Use |
Light Commercial / Domestic |
| Amperage (RLA) |
1.1A – 1.3A |
| LRA (Locked Rotor Amps) |
7.5A |
| Type of Relay |
PTC Relay |
| Capacitor |
N/A (Optional 4-5µF for RSCR conversion) |
| Brand/Model |
Refrigerant |
HP |
Cooling Power (W) |
COP (W/W) |
| MAQ QD168H |
R134a |
1/4 HP |
195 W |
1.25 |
| Embraco FFI 7.5HAK |
R134a |
1/4 HP |
202 W |
1.29 |
| Huayi QD75H |
R134a |
1/4 HP |
190 W |
1.22 |
| Samsung SD162 |
R134a |
1/5+ HP |
175 W |
1.20 |
The Matsushita QA77C17GAX5 is a workhorse in the refrigeration world. This 1/4 HP R134a compressor is a go-to for many household fridges and freezers. In this guide, we break down the technical specs, electrical wiring,…
| Data Point |
Technical Specification |
| Model |
QA77C17GAX5 |
| Utilisation |
LBP (Low Back Pressure) |
| Domaine |
Freezing / Cooling |
| Oil Type and Quantity |
POE (Polyolester) / 230ml |
| Horsepower (HP) |
1/4 HP |
| Refrigerant Type |
R134a |
| Power Supply |
220V – 240V / 50Hz / 1 Phase |
| Cooling Capacity |
614 BTU/h (180 Watts) |
| Motor Type |
RSIR |
| Displacement |
7.7 cm³ |
| Winding Material |
Copper |
| Typical Pressure |
Suction: ~1 PSI / Discharge: ~140 PSI |
| Capillary Tube |
0.031″ Internal Diameter |
| Common Usage |
Household Fridges, Chest Freezers |
| Temp Range |
-35°C to -10°C |
| Fan Requirement |
Static Cooling (Natural Convection) |
| Type |
Domestic / Light Commercial |
| Amperage |
1.1A to 1.3A |
| LRA (Locked Rotor) |
14.5 Amps |
| Relay Type |
PTC |
| Capacitor |
None (Standard configuration) |
| Manufacturer |
Competitor Model |
Refrigerant |
Capacity (Watts) |
| Matsushita |
QA77C17GAX5 |
R134a |
180 W |
| Embraco |
FFI7.5HAK |
R134a |
193 W |
| Danfoss/Secop |
TLS7FT |
R134a |
175 W |
| LG |
MA72LCEP |
R134a |
185 W |