TROUBLE SHOOTING (GAS SAFE ENGINEER ONLY)
13
Reset and try again
Clean as necessary. Replace switch panel as necessary if damaged or too contaminated.
disconnect wired control panel and try again – if it works replace wired control panel
E17
Button (-) is shorted
to other buttons
either on TESC or on
wired control panel (if
used)
Check for contamination
/ damage and replace
wired switch panel if
necessary
Reset and try again
Clean as necessary. Replace switch panel as necessary if damaged or too contaminated.
E18
Button (AUX) is
shorted to other
buttons on switch
panel
Check for contamination
/ damage and replace
wired switch panel if
necessary
Reset and try again
Check if wired correctly and replace IR eye if necessary
E19
Infrared receiver
defective (if used)
Check connection of IR
or damage - replace if
necessary IR eye
Reset and try again
Check if wired correctly and replace IR eye if necessary
E20
Illegal setup
parameters
Check connection of IR
or damage - replace if
necessary IR eye
Reset and try again
Usually only a factory assembly error. Could happen if done in error in servicing.
E21
Tried to config a
TESC as Clusterslave
while a wired
thermostat is
connected
Factory assembly
warning on setup
configuration not a
maintenance error
Reset and try again
Disconnect thermostat before attempting using Easy test unit.
E22
Tried to calibrate
TESC with TESC
easy test while a
wired thermostat is
connected
Not field error
Reset and try again
Indicated that control has performed a high number of operations and so fire should be serviced and
control replacement should be considered as preventative maintenance. (should not really occur
before 10 years from new).
E23
Warning: end of life is
near, should be
replaced soon
Not field error
Reset and try again
Check and correct Thermocouple wiring. Replace thermocouple if necessary
E24
Thermocouple
doesn't reach final
current - damaged or
aged
Replace Pilot
Reset and try again
Check pilot thermocouple connections and connections to TESC
E25
Poor thermocouple
signal
Tired or bad connection
of thermocouple or bad
or unstable flame on pilot
or poor grounding return
Reset and try again
Replace with new USB power supply of the correct type.
E26
Defective or wrong
wired USB-power
supply
Try again and if
repeatedly fails replace
Reset and try again
Check and correct Thermocouple wiring. Replace thermocouple if necessary
E48
Short circuit on
thermocouple, or
thermocouple
reversed polarity
Wrongly wired
Reset and try again
Check if and clean around the area of the pilot for lint and other contamination and clean. Check
where the thermocouple connect to the TSC control for the same contamination. Clean these areas.
E49
False flame signal
Flame detected during
operation of fire when it
should not be detected -
contamination of
electrode circuit to
ground
Reset and try again
Check if and clean around the area of the pilot for lint and other contamination and clean. Check
where the thermocouple connect to the TSC control for the same contamination. Clean these areas.
E50
Internal error
Reset and try again
Check pressure switch connections , check to see if jumpers are in place on back of TESC.
E51
Error caused by
external pressure
switch
Reset and try again
E52
Error
Reset and try again
E27
Error
Reset and try again
E28
Error
Reset and try again
E29
Error
Reset and try again
E30
Error
Reset and try again
E31
Error
Reset and try again
E32
Error
Reset and try again
E33
Error
Reset and try again
E34
Error
Reset and try again
E35
Error
Reset and try again
E36
Error
Reset and try again
E37
Error
Reset and try again
E38
Error
Reset and try again
E39
Error
Reset and try again
E40
Error
Reset and try again
E41
Error
Reset and try again
E42
Error
Reset and try again
E43
Error
Reset and try again
E44
Error
Reset and try again
E45
Error
Reset and try again
E46
Error
Reset and try again
E47
Error
Reset and try again
E53
Error
Reset and try again
E54
Error
Reset and try again
E55
Error
Reset and try again
E56
Error
Reset and try again
E57
Error
Reset and try again
E58
Error
Reset and try again
E59
Error
Reset and try again
E60
Error
Reset and try again
E61
Error
Reset and try again
E62
Error
Reset and try again
E63
Error
Flame detected during
operation of fire when it
should not be detected -
contamination of
electrode circuit to
ground
Reset and try again
Check and correct Thermocouple wiring. Replace thermocouple if necessary
Check pilot connections
Reset and try again
Clear pipe, replace pilot as necessary
Pilot pipe may be
blocked completely
Code Comment
Apperance
Possible Cause
Action