21
FAULT DIAGNOSIS
GAS OPERATION
FAULT OBSERVED
CAUSE
SOLUTION
Burner will not adjust
(continuously on low or high
flame setting)
Gas pressure
Blocked jet
Control tap fault
Check gas pressure correct
Clear blockage from jet and check the
jet size
Inspect / test the control tap
Burner causes soot deposits
Gas pressure
Check and adjust the gas pressure.
Low pressure is usually the cause of
soot deposits
Burner flame lift
Gas Pressure
Check and adjust the gas pressure.
High pressure may cause the flames to
lift
Burner – no Spark Ignition
Power supply
Poor connection
Spark generator
Check power supply
Check all connections
Test spark generator and check for
earth leakage due to damaged wire
Burner will not remain lit
Thermocouple failure.
Blocked jet
Test & replace thermocouple if required
Check thermocouple in flame path
Clear jet blockage
INDUCTION OPERATION
FAULT OBSERVED
CAUSE
SOLUTION
LED Display shows U
No pan detected or
pan not suitable for
induction heating
Use a suitable pan placed centrally
over the induction heating zone.
LED Display shows E or
┌┘on
start up
Internal fault detected. Disconnect electric supply and refer to
Thetford approved Service Agent.
LED Display shows ‘H’ after
use
Residual heat
detected, glass
surface is still hot.
This is normal, allow the appliance to
cool after use.
For assistance with service, please contact your authorised local Service Agent
giving details of the model and serial number on the data badge as shown below,
plus date of purchase.
Summary of Contents for SHB981 Series
Page 22: ...22 Fig 6 Mains Wiring Diagram...
