![background image](http://html.mh-extra.com/html/solar-3c/3c382b/3c382b_installation-user-and-service-manual_1313409021.webp)
21
Fault
Possible cause
Remedy
No hot water
1. Mains supply off
2. Strainer blocked
3. Pressure reducing valve (PRV)
incorrectly fitted
1. Open stockcock
2. Turn water supply off, remove strainer and
clean. (see 10.6)
3. Re-fit correctly
Water from hot
taps is cold
1. Programme set to heating
only or not switched on
2. Central heating boiler mal-
function
3. High limit thermostat has
tripped
4. Motorised valve malfunction
1. Set programmer to call for hot water
2. Check boiler operation if faulty consult your
boiler manufacturers instructions
3. Check and re-set
Intermittent water
discharge
1. Expansion vessel has lost its
charge pressure
1. Turn off stopcock open a hot water tap
check vessel charge pressure and recharge to
3 bar
12. Fault Finding
Notice: Disconnect electrical supply before removing any electrical equipment cover.
Summary of Contents for 3C382B
Page 24: ...24 Notes ...
Page 38: ...14 Notes ...