9 Servicing

9.1 A Tectite disconnecting tool is required for removal and servicing of certain components.

9.2 Please ensure that the mains water and mains electrical supply are isolated prior to commencing and maintenance or replacement of components.

9.3 Routing Maintenance:

9.3.1 Operate appliance and check for correct function.

9.3.2 Clean filter in Y-Pattern Strainer.

9.3.3 Clean filters in Thermostatic Blending Valve (if fitted).

9.3.4 Check that immersion heater thermostats are set to 80°C.

9.3.5 Check for air in Heat Bank Thermal Store Pump

9.3.6 Immersion Heater Checks: If an economy supply is unavailable, then an alternative electrical supply will need to be connected to the lower immersion heater. Activating the boost setting on the controller may turn on the electrical supply to the upper immersion heater.

9.3.6.1 Check operation of Immersion Heater Thermostats. This should be carried out using a suitable voltmeter, and turning the thermostat settings up to maximum.

9.3.6.2 Using a suitable current measuring device, check that each immersion heater draws approximately 12.5amps.

9.3.6.3 Check that immersion heater thermostats are set back to 80°C and covers replaced securely upon completion.

9.3.7 Check presence of label indicating addition of scale inhibitor. Check stored water for correct dosage of inhibitor. Details may be obtained from supplier of inhibitor