Thermon Ruffneck Instructions de montage

3. Contactor is burned or welded

3.1 Check the contactor for burn

marks and blackening. Replace

the contactor.

3.2 Check incoming power to the

heater to ensure there are no

voltage uctuations.

4. Heat exchanger is dirty

4.1 Clean the heat exchanger

using compressed air.

5. PRV has released

5.1 If there are signs that the

PRV has released uid, PRV

indicator is broken, blackening

around the PRV exit hole, or

there are uid stains visible on

the top louver, shut the unit

down immediately.

5.2 Check for restricted air ow,

bad motor, broken thermostat

or malfunctioned high limit.

Ruffneck™ Troubleshooting Tips

1. Heater is not operating

1.1 Check all fuses in heater

control box.

1.2 Check remote disconnect

switch and circuit breaker.

1.3 Check voltage supplied to the

heater – refer to the heater data

plate for voltage requirements.

1.4 Check thermostat by turning

it and check continuity with a

multimeter.

1.5 Check the condition of the

disconnect switch if the heater

is so equipped. Measure

continuity through the

disconnect by engaging the

switch.

1.6 Verify that there is a jumper

wire present between terminals

5 and 6 on the terminal block

located in the control box.

2. Contactor is chattering.

2.1 Check supply voltage.

2.2 Check wiring connections.

Tighten all loose electrical

connections.

2.3 Check thermostat for continuity

(See 1.4). If thermostat does

not break continuity, replace

thermostat.

CAUTION: DO NOT FORCE

CONTACTS CLOSED

CAUTION: DO NO USE WATER

TO CLEAN THE HEATER.

CAUTION: IF PRV HAS

RELEASED, SEND THE UNIT

IN FOR REPAIR OR

REPLACE THE CORE.

6. Heater is cold on top and warm

on bottom.

6.1 The core may have lost its

vacuum. Check the PRV for

signs of loss of uid and verify

that the PRV label indicator

is not broken. If PRV has

released, send the unit in for

repair or replace the core.

6.2 If the PRV does not indicate

loss of uid, the heater should

operate normally. Check for

loss of uid on a weekly basis

as a minimum.

6.3 The ambient temperature

may be too low. If the ambient

temperature is very cold the

top of the core will be colder

than the bottom – this is

normal.

7. Unit cycles on high limit—unit turns

on and turns off within less than

5 minutes.

7.1 Check and see if the PRV has

released uid. Core may have

lost most or all of its uid. If

PRV has released, send the

unit in for repair or replace

core.

7. 2 The core may be dirty, fan

may not be working or may

be turning the wrong way (the

fan must rotate clockwise

as seen from the front of the

unit) objects may be stuck in

the heat exchanger for drying

or warming up – remove any

items from the exchanger.

8. The Ground Fault Interrupter (GFI)

trips on the main panel, or heater

blows fuses

8.1 Check that you have a fuse of

the proper amperage rating.

8.2 Check for loose or frayed

wiring.

8.3 If condition is not observable,

send heater in for repair.

8.4 Change sensitivity of GFI.

9. The fan is turning but very little air

comes from the front of the heater.

9.1 Check fan rotation and ensure

that the fan turns clockwise

as seen from the front of the

heater. Refer to the Owner’s

Manual for more information.

9.2 Check motor winding

resistance and verify that they

are balanced.

9.3 Check fan blade set screws to

ensure fan blade is not loose on

the motor shaft.

CAUTION: DO NOT USE THE

HEATER AS A CLOTHES DRYER.

Ruffneck™Factory

5918 Roper Road

Edmonton AB T6B 3E1

Phone: 780-466-3178

Fax: 780-468-5904

Email: info.ths@thermon.com

www.thermon.com

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