GOLD CGa Gas-Fired Water Boiler — Boiler Manual

11c Troubleshooting — spark-pilot boilers (continued)

CHART 5 — Spark-ignited pilot — FLAME & POWER lights flashing

— Usually indicates flame sensed when it shouldn't be there —

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.

Are manual main shutoff valve and gas valve open?

No

Yes

• Leave main manual gas valve closed.

 

 

 

• Turn off power to the boiler at service switch or breaker.

• Turn off power to boiler at service switch or breaker.

 

• Wait at least 45 seconds.

 

• Wait at least 45 seconds.

 

 

 

• Turn on power to boiler.

 

• Turn on power to boiler.

 

 

 

• Restart boiler, following Operating instructions in this

• Restart boiler, following Operating instructions in this

 

manual (Section 9b) or on boiler label.

 

manual (Section 9b) or on boiler label.

 

 

 

• Look through the pilot inspection port to see if the pilot is

Do FLAME and POWER lights still flash?

 

burning.

 

 

 

 

 

 

 

Is pilot burning?

 

No

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

 

 

Yes

 

 

 

 

 

 

 

 

 

 

•Replace control module.

•Retest.

 

 

 

 

• Allow boiler to continue cycling.

 

•

Replace gas valve.

 

 

 

 

 

 

 

 

 

•

Retest boiler.

 

 

 

 

 

 

 

 

 

Are FLAME and POWER lights flashing?

 

 

 

 

 

 

 

 

 

 

 

 

Are FLAME and POWER lights flashing?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

 

 

Yes

 

 

No

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

•

TURN OFF POWER

 

•

Boiler may now be

 

•

Replace control

 

•

Boiler should now

 

•

Replace control

 

 

 

operating

 

 

module.

 

 

operate normally.

 

 

module.

 

 

to boiler at service switch

 

 

 

 

 

 

 

 

 

 

 

 

normally.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

or breaker.

 

 

 

•

Retest.

 

•

Original flashing

 

•

Retest.

 

 

 

 

 

 

 

 

 

 

•

Open main manual gas

 

•

Perform start-up

 

 

 

 

 

 

FLAME light

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

valve.

 

 

procedures in

 

 

 

 

 

caused by gas

 

 

 

 

 

• Turn on power to boiler

 

 

boiler manual to

 

 

 

 

 

valve not

 

 

 

 

 

 

at service switch or

 

 

verify proper

 

 

 

 

 

operating properly.

 

 

 

 

 

•

breaker.

 

 

operation.

 

 

 

 

•

See normal

 

 

 

 

 

Restart boiler per

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

operating instructions.

 

 

 

 

 

 

 

 

 

 

sequence of

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

•

Perform start-up

 

 

 

 

 

 

 

 

 

 

operation,

 

 

 

 

 

 

procedures in boiler

 

 

 

 

 

 

 

 

 

 

Figure 24,

 

 

 

 

 

 

manual to verify proper

 

 

 

 

 

 

 

 

 

 

page 37.

 

 

 

 

 

 

operation.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

57

Part Number 550-101-009/0107

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Page 56 Page 58
Page 57
Image 57
Weil-McLain CGA25SPDN manual Chart 5 Spark-ignited pilot Flame & Power lights flashing
Page 56 Page 58

CGA25SPDN specifications

The Weil-McLain CGA25SPDN is a high-efficiency gas-fired boiler designed to deliver dependable heating performance while maintaining a strong focus on energy savings and user-friendly operation. Ideal for residential applications, this boiler is engineered to provide consistent warmth and comfort in homes with various heating demands.

One of the main features of the CGA25SPDN is its durable construction. Built with high-quality materials, this boiler is designed to withstand the rigors of frequent operation while maximizing longevity. It features an advanced cast iron heat exchanger that efficiently transfers heat to the water, resulting in lower energy costs and improved overall performance.

Efficiency is a key characteristic of the Weil-McLain CGA25SPDN. Its design promotes efficient combustion, allowing for a higher Annual Fuel Utilization Efficiency (AFUE) rating. With an AFUE rating of up to 82%, this boiler ensures that more of the fuel used is converted into usable heat, which translates to reduced energy bills for homeowners.

The boiler exhibits a user-friendly control system that allows for easy operation and maintenance. It comes equipped with an integrated vent damper that maximizes efficiency by reducing heat loss during standby periods. Additionally, the CGA25SPDN features an adjustable thermostat, enabling homeowners to customize their heating preferences easily.

Another significant feature of the CGA25SPDN is its versatility. The boiler is compatible with various heating applications, including hot water heating systems and home heating configurations. This adaptability makes it a great choice for both new installations and retrofitting existing systems.

Safety is always a concern with gas-fired appliances, and the Weil-McLain CGA25SPDN addresses this through its advanced safety mechanisms. The boiler incorporates safety controls that prevent overheating and ensure proper operation, providing peace of mind to homeowners.

In summary, the Weil-McLain CGA25SPDN stands out as a reliable and efficient heating solution for residential settings. With its durable construction, high-efficiency performance, user-friendly controls, and impressive safety features, it is an exceptional choice for those seeking a dependable gas-fired boiler that meets modern heating demands while keeping energy costs in check. Homeowners can trust the Weil-McLain CGA25SPDN for warmth and comfort through the cold months.
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