Table 28 – Error Codes 2 Stage PSC furnace
Green
LED
FLash
Amber
LED
Flash
Red
LED
Flash
Erreur/Conditions
Comments/Troubleshooting
Furnace doesn’t operate.
Control
board LED’s are off.
Door switch is defective or open. There is no
120V to the board.
1
Flame sense when no flame should
be present.
Verify the gas valve is operating and shutting
down properly. Flame in the burner assembly
should extinguish promptly at the end of the
cycle.
2
Pressure switch stuck closed
Faulty pressure switch, pressure switches
wires shorted, control board inducer relay
stuck closed
3
First stage pressure switch stuck
open
Faulty pressure switch or tubing or wiring,
control board inducer relay failed, restriction
at the vent, blocked vent
4
High limit and/or rollout switch open
Verify temperature rise and airflow, duct static
pressure, burners alignment, wiring to both
switch (high limit and rollout).
5
Open fuse or roll out switch
Check fuse and replace. Check roll out switch
6
Pressure switch lockout, pressure
switch has opened 5 times in a
heating cycle.
Check for venting restriction, verify pressure
switch tubing for leaks.
7
Lockout after multiple failed ignition.
Check gas pressure and gas valve. Make
sure flame rod is clean and properly wired.
Check ignitor and its connection.
8
Lockout after multiple flame lost.
Check gas pressure and gas valve. Make
sure flame rod is clean and properly wired.
9
Improper grounding or polarity
120V hot and neutral reversed. 120V should
be read between Hot and ground. 0V should
be read between Neutral and ground.
10
Gas valve current detected with no
call for heat.
Verify if any electrical short could send
voltage/current to the gas valve.
If not,
replace control board.
11
Open limit switch
Reset
the
unit
and
verify
blower
is
functionning
at
proper
speed.
Verify
temperature rise and airflow, duct static
pressure, burners alignment, wiring to both
switch (high limit and rollout).
12
Ignitor relay on control board is not
functionning.
Replace control board.
Solid
ON
Internal control board error
Reset control. Replace control board if error
code is still present.
Rapid
Twinning
error
(Twinning
is
not
recommanded)
Don’t twin your furnaces.
3
double
Second stage pressure switch stuck
open.
Check for faulty pressure switch, tubing or
wiring. Check for restriction at the vent. Make
sure inducer blower is functionning properly.
1
Normal operation with call for first stage
heating.
2
Normal operation with call for second stage
heating.
3
Call on W2 without call on W1
Verify thermostat and wiring.
4
Call on Y or Ylo without call on G
Verify thermostat and wiring.
Rapide
Low flame sense
Clean flame rod with steel wool. Check gas
outlet pressure.
1
Normal operation with call for 1st stage
cooling.
2
Normal operation with call for 2nd cooling or
Single stage cooling.
Rapid
Normal operation with call for fan on.
Solid
On
Normal operation, standby mode
37
Содержание C105-1-D
Страница 24: ...Figure 26 Alternate horizontal termination C Figure 27 Venting gasket 23...
Страница 25: ...Figure 28 Direct vent clearance 24...
Страница 26: ...Figure 29 Other than Direct vent clearance 25...
Страница 34: ...Figure 32 Single Stage PSC Wiring diagram...
Страница 35: ...Figure 33 Two Stage PSC Wiring diagram...
Страница 36: ...Figure 34 Single Stage ECM Wiring diagram...
Страница 39: ...Figure 35 Dimensions 38...
Страница 40: ...Figure 36 Exploded view CXX 1 X part 1...
Страница 41: ...Figure 37 Exploded view CXX 1 X part 2...
Страница 43: ...Figure 38 Exploded view Cxx 1 D part 1...
Страница 44: ...Figure 39 Exploded view Cxx 1 D part 2...
Страница 46: ...Figure 40 Exploded view Cxx 2 D part 1...
Страница 47: ...Figure 41 Exploded view Cxx 2 D part 2...