OPERATION PUMP OVERRUN FOR OVERHEAT

Set Appliance State:

Mains Power Off

CH Demand

Locate system pump

WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure

Mains Power On

Observation:

Allow the appliance to ignite and run in central heating mode for 1 minute.
Remove the demand and monitor the pump.
The pump should continue to run for 5 minutes after the demand has been removed and the burner has extinguished.
Does the pump overrun operate as expected?
Please choose from one of the options below:
PUMP OVERRUN OPERATES AS EXPECTED
PUMP OVERRUN DOES NOT OPERATE AS EXPECTED

Note.
CH pump overrun time may vary dependent on diagnostic setting d01. If pump overrun does not behave as described check this diagnostic code before choosing pump overrun does not operate correctly.
Click here for a guide on accessing and amending diagnostic codes.
Refer to ADAPT for more information on diagnostic codes.