Error code

OL1

Issue

The overload protection of the product is activated. The connected electrical load is too high.

Verification

Make sure that the electrical load connected to the thermostat is equal to or less than its technical limitation.

Line voltage thermostat

Maximum load @ 120 VAC

Maximum load@ 240 VAC

TH1120RF-30001500 W

3000 W

TH1120RF-40002000 W

4000 W

TH1121RF-30001500 W

3000 W

TH1121RF-40002000 W

4000 W

TH1123ZB1500 W

3000 W

TH1124ZB2000 W

4000 W

TH1123WF1500 W

3000 W

TH1124WF2000 W

4000 W

TH1500RF1800 W

3600 W

TH1500ZB1800 W

3600 W

 

Solution

Perform a reset of the circuit breaker.

  1. Find the circuit breaker connected to the unit.
  2. Disable it.
  3. Wait about 30 seconds.
  4. Reactivate the circuit breaker.

Problem solved?

  • Yes
  • No