What is the response time for intermittent ignition?
Response time — For a thermocouple, about 180 sec; for intermittent ignition systems, 0.8 sec. Self-healing — (Special feature on some integrated fan controls.)
What happens if first attempt at ignition fails?
If the first ignition attempt fails during a normal heating cycle sequence, the control will activate a “self-healing” sequence over the temperature correction cycle before the next trial for ignition. Shutdown — This means that it will retry without having to interrupt power.
What is the term for non lockout ignition?
Non-lockout — Also called continuous trial for ignition; the system keeps sparking until ignition is established. Postpurge — The time after burner operation when the blower continues to run, to force any residual products of combustion from the chamber. Prepurge — The time when the system is not up and trying for ignition.
How to troubleshoot intermittent ignition on a gas heater?
McElwain is the owner of Gas Appliance Service Training and Consulting, Warren, RI, which offers servicing and troubleshooting training for gas heat servicers. He may be reached at 401-437-0557. Continuous retry— A 90-sec trial for ignition with a 5-min shutoff before retry.
What can cause an ignition switch to fail?
(These generalizations, depend significantly on year, make, and model.) Worn ignition switch contacts, temperature problems, or broken springs can all cause the ignition switch to fail, preventing you from starting your car. On the road, poor ignition switch contacts could shut the engine off while driving, which could be dangerous.
What happens if you have an incorrect ignition code?
The chip in the key transmits a specific code, of which there are millions. If this code matches the ones programmed into the vehicle, engine starting is enabled. An incorrect key code, such as from an unprogrammed key or damaged key, would prevent engine starting. Code “confusion,” such as having multiple keys can also occur, preventing ignition.
How to replace a no start ignition switch?
GM Ignition switch replacement to fix a no start or intermittent start. Faulty ignition switch contacts can also cause the PassLock system to enable Click here to see step by step proceedures. http://www.thejunkmanadv.com/the-junk… Support the site, buy service manuals here : http://www.tkqlhce.com/click-7357719-… Loading…
How often should you insert and remove the ignition key?
You may insert and remove the ignition key thousands of times every year, wearing the key and tumblers ever-so-slightly every time. Heavy keychains can add more stress to the ignition cylinder, increasing wear. After a while, the key may fall out of the cylinder or be unable to turn out of the lock position.