How Your E
ASY
H
EAT
Works
27
801-9309.doc
Interpreting Faults, Limits and Advisories
Your E
ASY
H
EAT
communicates information about the way it’s operating. This section
explains these conditions and what you can do (
4
) to respond to them.
●
●
Fault
Heating interrupted; fault detected; correction required
to Control zone,
►
Status
then
for fault notice
Low Coil Flow
inadequate flow to coil
(FLS2, see schematic)
assure water flow thru coil
assure plug at power circuit
board
Low HSink Flow
inadequate flow to unit
(FLS1, see schematic)
assure water flow thru unit
assure plug at control circuit
board
Coil shorted?…
…Increase caps
frequency out-of-range
START
restored after 4 sec
clean coil; remove bridging
call us (new caps)
●
●
HeatOn (Not regulating)
This occurs when the unit cannot meet your Setpoint. It lets
you know that output is being restricted due to the condition
mentioned in the notice; Cutback Mode may be displayed
Cap Over-Voltage
Cap Over-Current
capacitor exposed to too
much voltage...
reduce Setpoint
Contact Us
Heat Sink Hot
heat sink near critical temp
assure adequate water flow
Enclosure Hot
internal air near critical
temp
assure adequate water flow
confirm internal fan op’n
Increase/decrease Taps
to improve output/setpoint
match
See §3.5, 3.7, 3.8
Cutback Mode
CAP TEMP PROTECT
+ REDUCE OUTPUT
peak current protection;
you note output falls with
increased setpoint
reduce setpoint
part out of coil, thru Curie?
follow ‘adjust taps’ notices
You may be able to correct frequency (Adjust Caps message) by adjusting coil with more
(lowers frequency) or fewer (increases frequency) turns; if your coil design is fixed, call
us for replacement caps
●
Advisory
*
See asterisk on display. Indicates output/setpoint are not well
matched; more efficient configuration may be possible
though output is within acceptable margins. See §3.5, 3.7,
3.8
