EHC Fusion E10 Combi Series - Trouble Shooting

EHC Fusion E10 Combi – Installation and technical manual Page 29
17. Trouble Shooting
SYMPTOM REASON SOLUTION
Water escaping from
unit
Possible transit movement Check and tighten all internal
compression connections
Cold water from taps
Possible programmer settings
Dual thermostat set to low
Dual thermostat over heat
Low boiler pressure
Check programmer is set for
desired time settings
Set dual thermostat to 60 deg
Check dual stat over heat
cut-out
Pressurise to 1.5 bar
Water discharges from
expansion relief valve
If continual, check pressure
reducing valve
If continual expansion PRV may
be damaged
If intermittent
Set pressure reducing valve
to 3 bar
Check PRV and replace if
required.
Check expansion vessel
pressure when cold, re-
pressurise if required
Check if balanced supply is
required(when using mixer
taps showers etc)possible
back feed.
Water discharging from
temperature relief valve
System has overheated
Check if backup immersion
heater is in use and over heat
device has failed.
Check TP valve and replace
if required.
Milky/Cloudy water Oxygenated water
Water from any high pressure
system will release oxygen
bubbles when flowing. The
No hot water flow
Water main off
Strainer blocked
Check incoming water main
Isolate water main and clean
as required.