Download JANDY Hi E2 TROUBLESHOOTING

JANDY Hi E2 TROUBLESHOOTING
TEMPERATURE CONTROL
PRESSURE SWITCH
White
6a 6b
White
Red
6
Red
Yellow
Purple
VENTURI or DIFFERENTIAL
PRESSURE SWITCH
1
Red
F1
IGN 120
L1
L2
IGN
9
10
8 F2
24V
IND
Brown
GAS VALVE
TH 7
VAL
Brown
BURNER 10a
LIMIT
BURNER
White
2
FIREMAN’S
SWITCH
CONNECTION
IGNITION
CONTROL
GND
Black
3
Black
TRANSFORMER
Black
4a
White
HIGH LIMIT
150° F
White
Black
Black/Yellow
Black
4b
120 VAC
ONLY
5
4
HIGH LIMIT
135° F
THERMISTOR
10b
VENT
LIMIT
HOT SURFACE IGNITOR
White
Black/Yellow
STEP 1
STEP 7
1
24 Vac
at
Transformer?
STEP 2
NO
7
24 Volts
at TH of
Ignition Co ntr ol?
1. Che ck Incoming Power Sup ply.
2. Che ck Tra nsformer Wiring .
3. Rep lace Transformer.
Yes
STEP 8
2
24 Vac at
Red Wire of
Terminal Block?
STEP 3
FAN OR
COMBUSTION BLOWER
NO
Fuse is blown. Lo ok for sh ort or overlo ad of
controls. Do not jumpe r o r b ypa ss. Fuse
Pro tects Transformer.
Yes
3
24 Vac at
White Wire o f
Terminal Block?
NO
Yes
NO
Is Fan On?
Is Ignitor
Glo wing ?
Check Firemans Switch, re mo te( s)
and wire connections.
120 Vo lts at F2 of Ignition Co ntr ol?
Check Sup ply Wiring.
Replace Ig n. Control.
.
NO
8
Yes
NO
Yes
STEP 9
NO
1. Che ck for vent blockag e o r d irty filter.
2. Perform air flow te sts.
3. Rep lace Ve ntu ri P ressur e Switch
Check Commons.
Replace Fa n.
.
Check Ignitor and supply wiring .
Per for m Ignitor Re sistance test..
Replace Ho t Surface Ig nito r.
9
Yes
STEP 4
Yes
4
24 Vac at
White Wire o f
Pressure Switch?
STEP 5
1. Che ck each limit individually.
NO
4a & 4b
2. Che ck if damage to disc, heads, exchange r.
3. Perform Tempe rature Rise Test.
STEP 10
24 Vac at 10
Bro wn wire
of Gas Valve ?
NO
NO
Is Pump on? Perform Back Pressure Test.
If 2PSI or more, replace switch . If less, Ch eck
pump, filter, heat exchan ger fo r water flow
restriction s.
NO
Is Temp Board calling for heat?
Check Burner Limit
and Ve nt Limit
10a
10b
Yes
Yes
5
24 Vac at
Black Wire of
Pressure Switch?
NO
Does Heater Fire?
Ver ify wire s and commons. Is Gas O n?
Replace Gas Valve.
Yes
24 Vac at 6
Bk/Y Wire of
Ign. Controlle r?
Yes
Go To
ste p 7
Yes
NO
1. Do Thermisto r test.
2. Is the re voltage at
Bl/Y wire?
YES
Replace Th ermistor.
Replace Te mp . Boar d.
Mat #0748, Rev. C 09/05
JANDY Hi E2 TROUBLESHOOTING
Hot Surface Ignitor Test
Safety Circuit Test
Ignitor must be disconnected from
the Ignition Control and cool to the touch.
Resistance through the Hot Surface Ignitor
should be 40 to 75 Ohms.
Leave black probe on Transformer
terminal with yellow wire.
Move red probe to each component
Fireman’s Switch block
Transformer
120 VAC
Set meter to test resistance.
1000
750
V ∼
200
2M
200
V --20
200K
2
ACV above 30 V
20K
2K
PNP
200
NPN
A ---
10A
OFF
ON
1000
750
V ∼
200
mA
200m
COM
Waterpik Technologies
Laars & Jandy Products
200K
2
2K
PNP
Test Hot Surface Ignitor
at Ambient Temperature
- range 40 to 75 Ohms-
Yellow Wire
20K
200
NPN
---
2m
mA
10A
Ω
v Ω
2M
200
V --20
A
2m
200m
COM
Ω
v Ω
Waterpik Technologies
Laars & Jandy Products
Thermistor Test Chart
Thermistor Test
Remove thermistor leads from temperature board. Set meter to test
resistance above 20 K Ohms. Using chart at the right, compare
the actual water temperature to the resistance reading to determine
if the thermistor is OK.
Temp
Resistance
Temp
Resistance
50° F
19.898 K Ohms
78° F
9.735 K Ohms
51° F
52° F
53° F
OFF
ON
1000
Ω at 20 K
or above
∼
750 V
200
2M
200
V ---
200K
20
2
20K
2K
PNP
200
NPN
77° F
2m
A ---
10A
mA
200m
COM
Ω
v
Ω
Waterpik Technologies
Laars & Jandy Products
54° F
55° F
56° F
57° F
58° F
59° F
60° F
61° F
62° F
63° F
64° F
65° F
66° F
67° F
68° F
69° F
70° F
71° F
72° F
73° F
74° F
75° F
76° F
77° F
19.435 K Ohms
18.871 K Ohms
18.382 K Ohms
17.902 K Ohms
17.473 K Ohms
16.988 K Ohms
16.549 K Ohms
16.150 K Ohms
15.710 K Ohms
15.314 K Ohms
14.923 K Ohms
14.547 K Ohms
14.193 K Ohms
13.823 K Ohms
13.477 K Ohms
13.138 K Ohms
12.813 K Ohms
12.492 K Ohms
12.186 K Ohms
11.893 K Ohms
11.593 K Ohms
11.309 K Ohms
11.032 K Ohms
10.765 K Ohms
10.502 K Ohms
10.250 K Ohms
79° F
80° F
81° F
82° F
83° F
84° F
85° F
86° F
87° F
88° F
89° F
90° F
91° F
92° F
93° F
94° F
95° F
96° F
97° F
98° F
99° F
100° F
101° F
102° F
103° F
104° F
9.483 K Ohms
9.284 K Ohms
9.079 K Ohms
8.864 K Ohms
8.655 K Ohms
8.450 K Ohms
8.253 K Ohms
8.057 K Ohms
7.871 K Ohms
7.687 K Ohms
7.509 K Ohms
7.335 K Ohms
7.166 K Ohms
7.001 K Ohms
6.840 K Ohms
6.685 K Ohms
6.531 K Ohms
6.384 K Ohms
6.238 K Ohms
6.099 K Ohms
5.963 K Ohms
5.829 K Ohms
5.700 K Ohms
5.572 K Ohms
5.449 K Ohms
5.327 K Ohms
10.000 K Ohms
Mat #0748, Rev. C 09/05