Waterco Turbotemp 200HD Installation And Operation Manual page 45

Heater Will Not Fire - B
Start
Is red "SERVICE
HEATER" LED "on"
YES
CONTINUE
NO
Is red "SERVICE SYSTEM"
LED on?
Verify that pump is on, filter is
not blocked, and the water
flow is above the minimum
requirement.
With pump running, adjust
Water Pressure Switch to
lower pressure until 'SERVICE
SYSTEM" LED goes out. Then
verify that "SERVICE SYSTEM"
LED goes on with pump off.
Check that water pressure is
within the adjustment range of
the Pressure Switch (0-35 kPa).
Verify that switch wiring is OK
and Pressure Switch port is
not blocked, and replace
water Pressure Switch.
Check whether any of the
red diagnostic LED's on back
of board (AGS, AFS, SFS,
HLS or PS) are "on"
GO TO
"HEATER WILLNOT FIRE - C"
Page 38
NO
YES
NO
YES
YES
NO
NO
YES
YES
NO
Section 5. Troubleshooting
Increase POOL/SPA
temperature setting on
Membrane Pad above actual
water temperature. Heater
should fire on demand for heat.
If not, and no other red LED's
light, replace Control Board.
Service pump/filter and
eliminate other flow
obstructions.
Heater should fire on call for
heat. Re-verify that water flow
is above minimum requirement.
Minimum Flow Requirements
Model Flow
175 76 LPM (20 gal/min)
200 76 LPM (20 gal/min)
250 95 LPM (25 gal/min)
300 114 LPM (30 gal/min)
400 151 LPM (40 gal/min)
If water pressure is outside of
adjustment range that will
open switch with pump off
and close switch with pump
on, replace with flow switch
set above minimum flow
requirement.
Minimum Flow Requirements
Model Flow
175 76 LPM (20 gal/min)
200 76 LPM (20 gal/min)
250 95 LPM (25 gal/min)
300 114 LPM (30 gal/min)
400 151 LPM (40 gal/min)
Go to "Diagnostic LED's",
(Pages 45 and 46)
I pg 44