4
Error/Alarms and
Troubleshooting
48
EN-RaychemHWATECOcontroller-IM-H57340 03/13
Indications/Trouble
shooting
Cause/reasons
Remedy
Water temperature
too low
Too low water
temperature
• Boiler temperature is
too low
• Cold water entering
system
• Heater used is differ-
ent type than entered
in program.
• Entered value of
ambient temperature
is too high.
• Insulation thickness
is different than stan-
dard thickness.
• Check boiler tem-
perature and timer
program
• Mixing valves and
janitor sinks may be
allowing cold water to
cross over to the hot
water side.
• Change heater
type in HWAT-ECO
(can only be done
in quick install
"Setup" on page 36
- Reinitialize)
• Change value of
ambient temperature
• Adjust power correc-
tion factor if possible
(see "Timer" on page
41)
• Change insulation
to match required
schedule in HWAT
installation manual.
