35
mexico HE
-
Installation & Servicing
Servicing
gENERAL
When replacing ANy component:
1.
Isolate the electricity supply.
2.
Turn off the gas supply.
3.
Remove the boiler front panels and inner sealing panel.
Refer to Frames 44 and 45.
After replacing ANy component check operation of the boiler
including gas tightness, gas rate and combustion test.
ThE BOILER MUsT NOT BE OpERATED WIThOUT ThE sEALINg pANEL FITTED
52 FLOW ThERMIsTOR REpLACEMENT
1.
Refer to Frame 51.
2.
Remove the boiler front panels and inner sealing
panel. Refer to Frames 44 and 45.
Note.
Only the boiler front panels need removing
on the HE15, 18 and 24 models)
3.
Pull the electrical leads off the flow thermistor and
remove earth connection.
4.
Remove the two screws retaining the flow
thermistor.
5.
Replace flow thermistor retaining with the fixing
screws previously removed and reconnect leads.
6.
Reassemble the boiler in reverse order.
7.
Check the operation of the boiler. Refer to Frame
51.
IMpORTANT
When work is complete, the sealing panel must be
correctly fitted, ensuring that a good seal is made.
Note.
In order to assist fault finding, the control panel has an
LED diagnostic display.
The key to boiler fault conditions
is shown in Frame 70.
51 REpLACEMENT OF COMpONENTs
s
ER
VICIN
g
mexico hE15, hE18 & hE24
mexico hE30 & hE36
3
3
4
4
Summary of Contents for he15
Page 2: ...2 mexico HE Installation Servicing...
Page 50: ......
