E Check Programmes - Glow-worm Compact 24c-AS/1 Installation And Maintenance Instructions Manual

Code/meaning
F.86
External safety shutdown
F.87
Fault: Igniter
F.88
Fault: Gas valve assembly
F.89
Fault: Pump
F.97
Main PCB self-test failed
E Check programmes
Note
Since the code table is used for various products, some codes may not be visible for the product in question.
Check programme
P.00 Purging the domestic hot
water and heating circuit
P.01 Start up the burner at the
adjustable heat input in heating
mode
P.03 Start up the burner at par-
tial load
P.04 Chimney sweep function
P.08 Filling or draining the
product
0020313973_01 Compact Installation and maintenance instructions
Possible cause
The flow temperature sensor
measures deviating values
3-port diverter valve blocked
Condensate pump defective
Igniter not connected
Igniter connected incorrectly
Short circuit in the cable har-
ness
Gas valve assembly not con-
nected
Gas valve assembly connected
incorrectly
Short circuit in the cable har-
ness
Pump not connected
Pump connected incorrectly
Incorrect pump connected
Short circuit in the cable har-
ness
PCB defective
Meaning
The function is activated in the small domestic hot water circuit for 4 minutes and then in the heat-
ing circuit for 1 minute. The pump runs and stops at regular intervals. The function is active for
five minutes.
Following successful ignition, the product is operated at the heat input shown in the display. This
value can be set from 0% (0 = min. output) to 100% (Hi = max. output) using
tion is active for 15 minutes.
Following successful ignition, the product is operated at the partial heat load that is set using dia-
gnostics code d.00. The function is active for 15 minutes.
If there is a domestic hot water demand, the product runs in domestic hot water mode and at max-
imum heat input. If there is no domestic hot water demand, the product runs in heating mode with the
partial heat load that is set using diagnostics code d.00. The function is active for 15 minutes.
The prioritising diverter valve is moved to the mid-position. To fill or drain the product, the burner and
pump are switched off. The function is active for 15 minutes.
Measure
▶
Check the flow temperature sensor.
▶
Check the 3-port diverter valve.
▶
Replace the condensate pump.
▶
Check the igniter's connection.
▶
Check the igniter's connection.
▶
Check the cable harness.
▶
Check the connection to the gas valve assembly.
▶
Check the connection to the gas valve assembly.
▶
Check the cable harness.
▶
Check the pump connection.
▶
Check the pump connection.
▶
Check whether the pump that is connected is the one that is
recommended for the product.
▶
Check the cable harness.
▶
Replace the PCB.
and . The func-
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