Roberts Gorden DAT75, DAT90, DAT100, DAT115 service manual TROUBLESHOOTING 15.1 General, Start

DUALAIR® HEATING AND COOLING UNITS INSTALLATION OPERATION AND SERVICE MANUAL

SECTION 15: TROUBLESHOOTING 15.1 General

WARNING

Explosion Hazard

Installation must be done by a registered installer/ contractor qualified in the installation and service of gas-fired heating equipment or your gas supplier.

Failure to follow these instructions can result in death, injury or property damage.

Start

Are gas & electrical

supplies on?

Yes

Is Red lockout

warning light on?

No

Does the fan run?

Yes

With external controls on, does the burner continue through the heating cycle?

Yes

Heater Operating

TROUBLESHOOT ENDS.

No

Yes

No

Yes

No

No

Turn on supplies.

Use 15.2 to test burner.

Press the white button on

the combination fan/limit No thermostat. Does the

fan run now?

Yes

See sections 5.3 & 11.3 to

check combination No fan/limit thermostat settings.

Does the fan run?

Has burner “Locked Out”? No

Yes

Use 15.2 to test burner.

If problems persist, contact ROBERTS GORDON® at Tel: +44 (0)1902 498733 or www.rg-inc.com

Use 15.5 to test fan.

Replace combination fan/limit thermostat.

Is combination fan/limit thermostat set correctly? No See sections 5.3 &11.3.

Adjust or replace

as necessary.

For your safety and optimum heater performance use only ROBERTS GORDON® replacement parts.

Conduct Commissioning procedure as shown on Page 21, Section 11

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