Controller Pcb; Fuse; Dhw Flow Rate And Temperature Sensor - gledhill GB35C Design, Installation And Servicing Instructions

9.11

cONTrOLLEr PcB

For access refer to section 9.1 General. Remove the clear plastic cover from the inside of the electrical/
lower fascia panel by removing the 4 retaining screws using a pozi type screwdriver. Remove all the
wiring plugs/spade connectors from the PCB after noting the  spade connector locations.
NOTE: There is a need on all, other than the spade connectors, to release the retaining clip before
carefully removing the various plug in electrical connectors. The plugs are all unique so cannot be
inserted incorrectly. DO NOT use the wires to pull out the plugs.
Release the PCB itself by unscrewing the 5 no chrome supports/stand offs using a 5mm AF spanner.
9.12

FuSE

For access refer to section 9.1 General. The fuse is located in the bottom left hand corner of the controller
PCB. To replace pull out from its holder.
Controller PCB
9.13

DHW FLOW rATE AND TEMPErATurE SENSOr

For access refer to section 9.1 General
Drain down the DHW side of the appliance by shutting off the isolating valve on the pipework below
the hydraulic monoblock compartment and opening the DHW taps. Then release the spring clip by
pushing to the right, pull out the sensor and then pull the electrical connector out of the sensor.
Note: The original 'O' ring will remain within the housing and will need to be removed to allow the 'O'
ring provided with the new sensor to fit/seal. The sensor is direction sensitive and must only be fitted
with the electrical socket at the top.
DHW flow rate and
temperature sensor
Pump
DHW flow rate and
temperature sensor
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