Hotpoint Refrigerator: Start Relay Clicking, Compressor... | appliancefaults.com

Technical Background:

The Hotpoint refrigerator's electronic control board (MCU) sends a signal to the start relay, energizing it. This relay then provides power to the compressor's start and run windings. The overload protector is designed to cut power if the compressor overheats, preventing damage. The voltage path is from the breaker panel (120V AC) to the outlet, through the power cord, to the control board, then to the relay and compressor.

Symptoms:

The homeowner observes that the refrigerator compressor is not running. They hear a clicking sound coming from the start relay area, but the compressor remains off.

Possible Causes:

Faulty start relay
Failed compressor
Overload protector tripped
Wiring issue between the relay and compressor
Low voltage to the refrigerator

Solution:

1

Unplug the refrigerator from the outlet.
2

Locate the start relay, overload protector, and compressor terminals (usually in a compartment near the bottom of the refrigerator). You might need a 1/4-inch nut driver to remove the access panel.
3

Disconnect the wires from the start relay and overload protector. Use a multimeter to test the start relay for continuity. Replace if open or shorted.
4

Test the compressor windings for continuity. A lack of continuity indicates a failed compressor. Check for short to ground. If the reading is very low, the compressor is likely shorted and needs replacement. Typical resistance should be between 2-10 ohms.
5

Check the overload protector for continuity. If it's open, replace it.
6

Inspect the wiring between the relay, overload, and compressor for damage. Repair or replace any damaged wires.
7

Plug the refrigerator back into the outlet and listen for the compressor to start. If it doesn't, further diagnostics might be needed. Verify 120V AC at the refrigerator outlet.

Safety Warning:

Always disconnect power to the refrigerator before performing any repairs. Lock-Out/Tag-Out (LOTO) procedures should be followed to ensure the refrigerator cannot be accidentally energized. Be aware of high voltage present when the unit is plugged in.

Prevention:

Clean the condenser coils regularly (every 6 months) with a vacuum cleaner. Ensure the refrigerator has adequate ventilation (at least 2 inches of clearance around the sides and back).

Expert Tip:

Sometimes, a hard start kit can temporarily revive a weak compressor. This adds extra capacitance to the start circuit. However, it's a temporary fix; compressor replacement is the long-term solution.

Frequently Asked Questions

•What is the correct resistance range for the compressor windings?

The resistance should typically be between 2-10 ohms for each winding. A short to ground indicates a major fault.

•How do I know if the overload protector is bad?

Test for continuity with a multimeter. If there's no continuity (open circuit), it's likely bad. A good overload protector will have continuity.

•Where can I find a replacement start relay for my Hotpoint refrigerator?

You can find replacement start relays at most appliance parts stores, both online and local. Have the refrigerator model number ready.

Hotpoint Refrigerator: Start Relay Clicking, Compressor Not Working Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the correct resistance range for the compressor windings?

•How do I know if the overload protector is bad?

•Where can I find a replacement start relay for my Hotpoint refrigerator?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: