1. Ruud Troubleshooting Manual

• Free repair help to fix your Ruud furnace. Use our DIY troubleshooting and videos. Then, get the parts you need fast.
• Ruud pool heat pump trouble shooting guide. Check owners manual to ensure that pool heater is installed correctly.

Ruud Trouble Shooting Guide Poolheatpumps.com Call Us Nationwide: 1-800-741-9956 West: (213) 291-9276 Southwest: (480) 719-4511 Midwest: (312) 229-0026 Northeast: (631) 223-7175 Southeast: (727) 400-3961. Troubleshooting Guide for Ruud Pool Heat Pumps XI.

Free Furnace, Heat Pump, Air Conditioner Installation & Service Manuals, Wiring. RUUD Air Conditioners, Heat Pumps, Gas Furnaces SAFETY RECALLS.

Troubleshooting If your heat pump does not operate, or simply does not heat your pool water, the indicator lamps on the front control panel (see Section IV) can provide valuable clues as to what is wrong, and may even indicate precisely what the problem is. Always observe these lamps before calling a service representative. By reporting on the telephone which lamps are ON and OFF, the service rep may be able to solve the problem without the expense of a service call. UNIT IS RUNNING, BUT NOT HEATING -Is water flow through the unit adequate? Check the unit for obstructions, such as a clogged filter pump strainer, a dirty filter, or valves not positioned correctly.Is the ejected air from the unit 8-10 cooler than incoming air? If so, the unit is extracting heat from the aIs water condensing on the evaporator and internal copper pipes?

This is also evidence of heat removal from the air. When the air is cool with low humidity, condensation may not be evident.How long has the unit been operating? During initial pool heating in cold weather, it may require a week to elevate the water temperature to a comfortable level. Normally, it takes about 4 days.How many hours per day is the unit operating?

Remember that the heat pump only operates while the pool pump is running. Set the time clock to permit 24 hour per day operation. After the desired temperature is reached, return the unit to normal operation of 8-10 hours per day. NOTE: If the pool pump and heat pump shut OFF before the water temperature is raised to the desired level, you must lengthen the running time of both.

To do this, reset the time clock dial for the longer running time, or manually operate the pump with the timer override switch. Since the heat pump capacity and efficiency are both greater at higher ambient air temperatures, run time should be set to take advantage of all daylight hours, when the air is generally warmer.Is airflow through the unit being obstructed?

Restrictions such as shrubbery, tall grass, dirty coils, or any other obstruction to airflow will reduce performance.Is the pool blanket/cover being used? Unblanketed pools can lose up to 10 degrees per night compared to 4 degrees or fewer when a blanket is used. Without a blanket, the total heat gained during the day can be lost overnight.Are rapid heat losses occurring in some other way, such as high wind, spillage, rainfall, flow through solar panels at nights, or a high water table? UNIT IS NOT RUNNING -Is the control panel Power lamp ON? If not, the circuit breaker may be shut OFF or tripped. Reset the breaker by switching it OFF, then back ON.

Verify that the breaker is set and operating properly before calling for service.Are the thermostat setting and the Pool/Spa setting correct? Verify that the temperature has been properly set on the thermostat, and that it is higher than the current water temperature. At this time all three lamps should illuminate and the fan should start to run.Is the Water Flow lamp ON? This lamp will turn OFF if not enough water is flowing through the unit. Improperly positioned valves or a dirty filter could decrease the flow of water required for efficient operation. If this lamp is OFF, but you can feel normal flow at the pool returns, check the water valves or settings.Have you waited approximately 5 minutes for the time delay?

After the unit has been running and then shut OFF for any reason, there is a delay before operation can begin again. Is the Heat Demand lamp ON? If not, then the thermostat setting is not higher than the temperature of the water. Raise the thermostat setting. NOTE: The heat pump will not run when the Remote position is selected on the Pool/Spa selector switch and there is no remote control system attached. Ir and transferring it to the pool.

CONDENSATION SEEMS EXCESSIVE Heat pumps can produce a large amount of condensation (water) during operation. If you suspect that the heat pump is leaking: a. Use a pool chemistry test kit to confirm there is no chlorine in the condensation. Shut the heat pump OFF and leave the filter pump running to see if the water stops dripping. If the water stops dripping, the heat pump is not leaking. Contact Us Phone: 1-800-741-9956 Email: helpdesk@poolheatpumps.com Links Customer Service Technical Information Connect With Us. Sign up for the Newsletter and receive pool maintenance tips and get exclusive offers on pool heaters and pool related products.

Poolheatpumps.com Inc. 220 History Place, St Augustine, Florida, 32095. United States of America.

This furnace uses an ignition control to start the burners and provide flame safety control. The sequence of operation of the ignition control is as follows: On a call for heat, 24 volt power travels from the thermostat through the limit switches to energize the ignition control. When power is applied to the control, the ignition sequence begins. A prepurge time begins. After a short time, the is energized.

After the warmup time, the gas valve is energized for a trial for ignition. Gas flows to the burners and is lit.

The HSI is used to sense if the flame is present. If the flame is sensed, the burners will continue to burn. If flame is not sensed on the first trial, 2 more trials for ignition are done. If flame is not sensed after 3 tries, the control locks out and will not try again until the power is shut off and turned back on again. Below is a video on the ignition control.

The first step in troubleshoot is: what is the the furnace doing or not doing. Does the furnace do nothing at all? If so, is there power? On this furnace, there is a low voltage (24v) terminal board on the left side. If power is available between 'R' and 'C', the unit has power. To eliminate the thermostat, measure power between 'C' and 'W'. If so power is available to start the unit.

If you find no 24 volt power, you may have no 120v power. Is the breaker on? Is the power switch on the furnace on? For our purposes, lets assume that we have 24v power but nothing is happening. On this furnace there is a special switch that is not on some other furnaces.

It is called a spill switch. It is located in the draft hood. If the hot gasses are not traveling out the vent, they are coming out the draft hood. So a blockage in the vent will cause the gasses to come out the draft hood opening. If the spill switch has sensed high temperature gasses, it will shut off and must be manually reset. If this switch has opened, you need to find out why. This a dangerous condition.

Ruud Troubleshooting Manual

The furnace could be producing poisonous CO gas. The video below starts the troubleshoot of this furnace through the draft hood switch. One of the most common problems with the HSI equipped furnaces is failure of the HSI. The HSI (commonly called the hot stick), is a 120volt heater that warms to 2300 degrees F to light the gas. On a call for heat, the ignition control turns on the HSI and allows 11 to 45 seconds for warmup.

At that point, the control allows gas to the burners. The gas flows for 4 to 7 seconds. If the ignition control senses flame, the burner stays on. If the flame is not sensed the unit shuts off the gas. The HSI can break and have no connection (they are very fragile). They are easy to check.

If the probes of an ohmmeter are placed across the terminals of the HSI. If it is it has failed. If it shows a resistance and the resistance is over 150 ohms it has not failed but will soon fail.

These parts have a limited number of lights or cycles in them. If your thermostat is set to cycle too often, they fail early. Also, if the air filter is plugged or fan dirty, the limit will shut off the burners during the cycle and the HSI will fail early. The video below covers the troubleshoot of the HSI. This control has no indicator lights for troubleshoot.

If the furnace does not work and you suspect a control board problem, kill the power to the control. Either shut off the thermostat or turn off the power to the furnace. Turn the power back on to see if the unit will try again. If the HSI does not come on, check the HSI with an ohmmeter as above. If no luck, be sure the grounding screw on the control is tight. Next, with the power on, place an voltmeter between 'TH' and 'GND'.

You should read 24v. If 24v is read and nothing happens, the control has failed. If 24v is not read, the problem is not in the control. Symptoms of a failed gas valve are somewhat similar to an ignition control failure. The HSI will come on but the gas will not flow.

The way to tell the difference is to place voltmeter leads on the terminals of the gas valve. The gas valve will only receive 24 volt power for 4 to 7 seconds after the HSI has warmed up.

Clip your leads on the terminals and start the unit. If the HSI warms then after the warmup shuts down with no power shown on the voltmeter, the ignition control has failed. If power is shown on the meter and gas does not flow, either the gas valve has failed or no gas is available. The following videos cover the RGDA model that used the mercury pilot system.