GOLD CGs Gas-Fired Water Boiler — Boiler Manual

11d Troubleshooting — control module lights

CHART 1 — Troubleshooting POWER light status

— Usually indicates reversed 120 VAC polarity if POWER light flashes by itself —

Electrical shock hazard — Wherever you see ▲TURN OFF POWER ▲, follow the instructions. Failure to follow instructions could result in severe personal injury, death or substantial property damage.

 

 

 

Is POWER light off?

 

 

 

 

 

 

• Make sure service switch or circuit breaker is on or fuses

 

 

 

 

 

 

 

 

 

 

 

 

are good.

 

 

 

 

No

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Remove 120 VAC IN plug (Figure 25, item 3,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

page 46) on control module.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Using voltmeter, check across top and bottom pins of

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120 VAC IN plug.

 

 

 

 

 

Is POWER light...

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Does voltmeter indicate 120 VAC?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Flashing

Flashing with

 

On steady

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

alone

another light

 

(not flashing)

 

 

 

No

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TSTAT CIRC

 

Chart 2

 

 

 

 

 

 

Problem is with incoming

 

 

 

 

 

light flashing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

electricity. Have licensed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PRESS SWITCH

 

Chart 3

 

Chart 5

 

 

 

electrician repair circuit.

 

 

 

 

 

light flashing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLAME

 

Chart 4

 

Chart 6

 

 

 

• Reconnect 120 VAC IN plug.

 

 

 

 

light flashing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Remove 120 VAC transformer PRIMARY plug

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For insufficient heat or no heat problem, go to

 

 

 

(Figure 25, item 2, page 46) on control module.

 

 

 

 

 

• Using voltmeter, check across top and bottom pins of

 

 

Chart 7 if POWER light is on steady, with no other

 

 

 

 

 

 

 

 

PRIMARY receptacle.

 

 

 

 

light flashing.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Does voltmeter indicate 120 VAC?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

•Usually indicates polarity on incoming 120 VAC power line is wrong.

•▲ TURN OFF POWER ▲ at service switch or breaker, then reverse the HOT and NEUTRAL wires entering the boiler in the J-box.

•Restore POWER at service switch or breaker.

Is POWER light flashing now?

No

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

Have system checked by a

 

 

 

licensed electrician.

 

 

 

If problem persists, call your

 

 

 

Boiler should now

 

local Weil-McLain sales

operate normally.

 

representative.

 

 

 

 

 

Replace control module.

Retest.

•Reinstall 120 VAC transformer PRIMARY plug.

•Remove 24 VAC transformer plug (Figure 25, item 5, page 46) on control module.

•Using voltmeter, check across pins of receptacle.

Does voltmeter indicate 24 VAC?

No

Yes

 

 

 

 

Replace transformer.

 

Replace control module.

Retest.

 

Retest.

 

 

 

Part number 550-110-260/0508

47

Page 46 Page 48
Page 47
Image 47
Weil-McLain 550-110-260/0508 manual 11d Troubleshooting control module lights, Chart 1 Troubleshooting Power light status
Page 46 Page 48

550-110-260/0508 specifications

Weil-McLain is a well-known name in the heating industry, offering a wide range of high-quality boilers and heating systems. Among its impressive lineup, the Weil-McLain 550-110-260/0508 model stands out for its performance, efficiency, and advanced technologies, making it suitable for residential and commercial heating applications.

The 550-110-260/0508 boiler is designed for flexibility and performance, providing an output capacity of 110,000 BTU per hour. This makes it suitable for various heating needs, from single family homes to larger commercial spaces. One of the key features of this model is its high-efficiency design, which allows it to operate at an AFUE (Annual Fuel Utilization Efficiency) rating of up to 95%. This means that a significant portion of the fuel consumed is converted into usable heat, resulting in lower energy bills and reduced environmental impact.

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In conclusion, the Weil-McLain 550-110-260/0508 model boasts a combination of efficient heating, durable construction, advanced control technology, and safety features, making it an excellent choice for those seeking a reliable and effective heating solution. Its versatility and performance make it well-suited for a variety of applications in both residential and commercial settings.
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