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POOL PRODUCTS
9.2.3.5. Control & Cad Cell
Troubleshooting Guide
Symptom Possible Cause
Burner runs all the time Defective primary
control
No combustion No power to the
primary.
Limit switch turned
off.
Defective limit
switch.
Bad wire connection.
Bad burner motor.
No power from fuse
box.
Defective primary
Ohmmeter pointer above 2 Partly plugged
nozzle.
Cad cell dirty.
Cad cell misaligned.
Defective cell.
Ohmmeter pointer below 3 Not enough
combustion air.
Cad cell sees too
much light.
Adjust alignment.
Primary wont lock out Defective primary
Ohmmeter pointer below 50 Stray light in burner
housing.
Defective cad cell.
Burner wont start Open circuit in
thermostat wiring.
Dirty thermostat
contacts.
Defective thermostat.
Burner runs with Short circuit in
thermostats contacts open thermostat wiring
Key Model ORDER
No. Description No. PART NO.
FUEL SYSTEMS
1 Oil Burner Assembly 3000 R0389702
2 Oil Filter With Cartridge All R0389800
3 Oil Filter Cartridge All R0389900
4 3/8 Oil Line, Pump to Filter 3000 R0390002
ELECTRICAL SYSTEM
5 Thermostat All R0318800
6 Thermostat Knob All R0010700
7 Thermostat Control Box All R0349100
8 Pressure Switch, 1-10 PSI All R0045400
9 Siphon Loop Cover All R0390200
10 Siphon Loop Assembly All R0057800
11 High-Limit Switch Set Contains: All R0390300
12 High-Limit Switch, 135°F All R0022700
13 High-Limit Switch, 150°F All R0390100
14 High-Limit Switch Harness 150°F All R0057500
15 High-Limit Switch Harness 135°f All R0057700
16 High-Limit Switch Cover with Gasket All R0390400
17 ON/OFF Switch with Cover and Gask. All R0390500
19 Gasket Only All R0390600
20 Oil Burner Harness All R0057600
21 Connector Elbow 90° All R0390700
WATER SYSTEMS
22 Heat Exchanger Assembly, Complete 3000 R0390802
23 Heat Exchanger 3000 R0390902
24 Inlet/Outlet Header All R0391000
25 End Cap (1/2 tap) All R0391100
26 End Cap (No tap) All R0391200
27 End Cap (1/4 tap) All R0391300
28 "V" Baffle (5 included) 3000 R0391402
29 End Baffle (2 included) 3000 R0391502
30 Tube Gaskets (12 included) All R0391600
31 Heat exchanger Hardware Kit Contains: All R0391700
32 Grommet (2 included) All
33 Brass Plug, 3/4 All
34 Drain Valve Extension (2 included) All
35 Drain Plug, 1/4 (3 included) All
36 By-Pass Assembly Contains: All R0391800
37 By-Pass Valve Rod All
38 By-Pass Valve Disc All
39 By-Pass Valve Rod Retainer All
40 By-Pass Valve Spring Only All R0391900
41 Flange & Gasket Assembly Contains: All R0031900
42 Flange, 1 1/2" with Bolts All R0392000
43 Flange Gasket and Sleeve, 1 1/2" All R0392100
SECTION 10.
Replacement Parts
10.1 Ordering Information
To order or purchase parts for the Laars XL-3
pool and spa heater, contact your nearest Jandy dealer
or distributor. See the Jandy web site at
www.jandy.com for the nearest service center. If they
cannot supply you with what you need, contact
Customer Service at Water Pik Technologies, P.O.
Box 6000, Petaluma, California, 94954, Telephone
(707) 776-8200 extension 245.
NOTE: To supply the correct part it is important
that you state the model number and serial number.
This information is on the rating plate inside the heater.
10.2 Parts List
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