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Whirlpool · Refrigerators
High Temperature Alarm
Quick Answer
Error code HT on your Whirlpool Refrigerators means: High Temperature Alarm. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
WRF555SDFZWRQA59CNKZWRS325SDHZWRS588FIHZWRT518SZFMWRX735SDHZ
Likely Causes
  1. Freezer or refrigerator compartment temperature has risen above safe levels
  2. Door left open for an extended period allowing warm air to enter
  3. Evaporator fan failure reducing cold air circulation
  4. Condenser coils severely clogged with dust reducing cooling efficiency
  5. Compressor not running due to relay or overload failure
How to Fix It
1
Verify both the refrigerator and freezer doors are fully closed
2
Listen for the compressor running; if silent, check the start relay and overload protector
3
Pull the refrigerator out and clean the condenser coils with a brush and vacuum to restore proper heat dissipation
4
Check the evaporator fan motor is running when the freezer door is closed by pressing the door switch manually
5
If the temperature does not begin to drop within 2 hours after corrective steps, further diagnosis of the sealed system may be required
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Condenser coil cleaning brush
Compressor start relay and overload kit (W10613606)
Evaporator fan motor (WPW10189703)
Related Error Codes
C1C2C3CFEF
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