Diagnostic Led's: Ags, Afs, Hls, Ps, Thermistor - Pentair MasterTemp Notice D'utilisation

Chauffe-piscine/spa c.a. 120/240 volts au gaz naturel/gpl. 200k btu/h, 250k btu/h, 300k btu/h, 400k btu/h
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Diagnostic LED's: AGS, AFS, HLS, PS, THERMISTOR

AGS or HLS "on"
Replace High Limit
Switch (HLS) or
Automatic Gas
Shutoff (AGS)
CONTINUE
If problem persists, verify proper operation of Internal Bypass Valve
and Thermal Governor, and check for Heat Exchanger blockage.
PS "on"
Verify that wiring is
OK and pressure tap
is not blocked. Re-
place Pressure Switch
AFS "on"
Replace Blower.
Verify that wires BM
and F1 are correctly
connected at the
terminal strip (see
Heater Connection
Diagram, Page 36).
YES
Disconnect wires F1
and F2 from Ignition
Control Module and
short them together.
Does Blower come
on?
YES
THERMISTOR "on"
CAUTION
Do not jumper a safety switch to
remedy a failed switch.
Verify that water flow rate is
above minimum required for
heater.
YES
Verify that inlet water temper-
ature is below 104° F.
Verify that water flow rate is
above minimum required for
heater.
CONTINUE
Adjust Water Pressure Switch to close with pump running and open with
pump off.
Does Blower operate?
Disconnect Blower and check
YES
for line voltage between pins
1 and 3 of Blower Connector
on ignition try.
Check for 24 VAC between
YES
24 VAC and GND terminals
on Ignition Control Module on
ignition try. Check that IND
NO
wire is correctly connected.
Verify correct
connection of wiring between
24 VAC and IND terminals on
Ignition Control Module and
Control Board, and replace
Control Board.
Connect correctly and retry.
Does Blower start?
NO
NO
Replace Blower. Does Blower
NO
start on ignition try?
Replace Ignition Control
Module.
Verify Thermistor wiring. If
OK, replace Thermistor.
NO
YES
NO
NO
YES
YES
NO
NO
NO
NOTE: ES1 is a spare and should be jumpered.
28
Service pump and filter to
restore proper flow. After ser-
vicing, verify proper operation
of Pressure Switch (PS).
Replace thermistor or Control
Board to correct overheating.
Service pump and filter to
restore proper flow.
CONTINUE
Verify that there is no block-
age in Blower intake, Heat
Exchanger, and exhaust and
that exhaust is not too long
(see "Indoor Vent Installation",
Page 15.
Verify correct connection of
wiring and that pressure taps
to AFS are OK.
Verify that vinyl tubing to AFS
and Blower is not misrouted,
kinked, disconnected, or
punctured.
Replace Air Flow Switch
(AFS).
If problem persists, replace
Blower.

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