no
no
5.14 NO CH BUT DHW OK
Is the heating circuit set for day or
in a timed (on) period operation?
Are the Timer and Room
Thermostat calling for Heat?
Are the Radiator Valves open?
Is an OpenTherm device connected
to the boiler (note that the Ideal
Prog Room Stat is an OpenTherm
device)?
Is there a room sesnor configured
and connected for the heating circuit?
Is there an outside sensor
configured and connected for the
heating circuit?
Is a switched live being used as a
heating circuit demand?
Is there a 230 av at SL1?
Does the boiler have a system or
heating circuit pump connected?
Check the control signal for the pump
depending on the configuraiton.
1. 230V supply from isolate or boiler MFR
2. Volts free enable from MFR
3. 0-10V signal from boiler 0-10V output
(Rectify fault as required)
Set for day or in a timed (on)
period operation?
Ensure that the Timer and
Room Thermostat are calling
for heat
Open the Radiator Valves
Check wiring continuity:
R(25ºC) = 10,000
Ω
Check system for water circulation
This is not a boiler fault.
Ensure voltage is supplied to
the boiler by correcting ther
external wiring
Does the wiring from
the boiler to the
OpenTherm device
have continuity?
Rectify wiring from boiler to
OpenTherm device
no
yes
yes
yes
no
no
no
no
yes
yes
yes
no
no
no
yes
yes
yes
69
Installation & Servicing
SECTION 5 - FAULT FINDING
F
AUL
T FINDING F
AUL
T FINDING F
AUL
T FINDING F
AUL
T FINDING F
AUL
T FINDING F
AUL
T FINDING
Summary of Contents for EVOMAX 2 30
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