Heatrae Sadia SUPREME User Manual

14
10.0 FAULT FINDING
YOUR HEATRAE SADIA SUPREME SHOULD GIVE TROUBLE FREE
OPERATION. HOWEVER SHOULD A FAULT OCCUR THE TABLE
BELOW SHOULD ALLOW MOST FAULTS TO BE IDENTIFIED. FAULT
FINDING SHOULD ONLY BE CARRIED OUT BY A COMPETENT
PERSON.
Symptoms Possible Cause Remedy
No lights on
front of unit
On/Off switch in Off position
Thermal cut-out tripped
Switch to On position
Reset and check for faults
(i.e. scale on thermistor)
No boiling
water
available
Broken tap top
Normal level sensor holding signal
Thermal cut-out tripped
(no lights lit on fascia)
On / Off switch in off position
Element failed
Replace tap top (or component)
De-scale / Clean / Dry
Reset and check for faults
(i.e. scale on thermistor)
Switch to On position
Replace element
Thermal
cut-out trips
regularly
Excessive internal scale. (See
‘service’ page 11)
Faulty wiring to thermistors / faulty
thermistors
Temperature controller needs
adjusting
Element failed to earth
Defective PCB
& / or triac PCB
De-scale the unit
(particularly thermistor)
Repair / replace as required
Lower operating temperature
Replace element
Replace PCB & triac
(sold as a matched pair)
Overows
Dirt in solenoid valve.
Level sensors require de-
scaling or replacing
PCB faulty
Cleansolenoidlterand“workthe
unit” or replace the solenoid - see
service Instructions (page 11).
De-scale / replace sensors
Replace PCB

Heatrae Sadia SUPREME Specifications

General

Type	Unvented
Installation	Wall Mounted
Temperature Control	Thermostatic
Material	Stainless Steel
Safety Features	Overheat Protection, Pressure Relief Valve
Water Feed	Mains Pressure
Maximum Operating Pressure	10 bar
Insulation	Polyurethane Foam
Capacity	7 Litres
Voltage	230 V
Outer Casing Material	Plastic