Retry exceeded: flame was never sensed. One-hour lockout after 3 times.
Homeowner part this code names: furnace hot surface igniter.
Search on AmazonOpens an Amazon search for that name. Check the size against your manual. As an Amazon Associate I earn from qualifying purchases.
American Standard S9V2 E2.1 is retry exceeded: flame was never sensed, then a one-hour lockout after three times. The same installer's guide says ignitor warm-up is about 20 seconds and flame has to be sensed within 4 seconds. E2.2 is the other lockout, flame sensed and then lost, after 10 recycles. This guide does not list a filter check for E2.1.
Likely causes
- Flame never sensed during the ignition trials
Safe checks for E2.1
- Write the code down. Open the Active Alarm or Last 6 Faults (L6F) menu only if you already know that control; otherwise leave the door on
- The same guide's heating sequence says the ignitor warm-up is about 20 seconds and flame must be sensed within 4 seconds
- Technicianfind why flame was never sensed. Typical flame current in this guide is 0.75 to 3.0 microamps, read as DC volts on the FP pads (1 VDC = 1 microamp)
Capacitors can hold a charge after the power is off. Safety terms.
When to call a pro
Call a licensed HVAC technician if E2.1 returns. The one-hour lockout is the control stopping further tries, not a repair.
Find a American Standard dealer (official locator, opens in a new tab) ↗Email me this fix
We save your email and this page. Nothing is emailed. We'll only use your email for this request.
Request a filter and maintenance reminder
We save your email, this page, and the interval you pick. Nothing is emailed. We'll only use your email for this request.
Parts & tools for this fix
Taken from this code's causes or steps. A search link opens Amazon results and does not confirm a fit. Check the model number in the manual.
Furnace hot surface igniter: guide
In this code: Parts list for this code: Hot surface igniter
See the guide for what to look for when buying one.
Nut driver set: guide
In this code: Panels and parts on a furnace are held by hex-head screws; a nut driver grips them without stripping.
See the guide for what to look for when buying one.
Furnace flame sensor: guide
Technician step in this code: find why flame was never sensed. Typical flame current in this guide is 0.75 to 3.0 microamps, read as DC volts on the FP pads (1 VDC = 1 microamp)
Multimeter for appliance and HVAC diagnosis: guide
Technician step in this code: find why flame was never sensed. Typical flame current in this guide is 0.75 to 3.0 microamps, read as DC volts on the FP pads (1 VDC = 1 microamp)
This one is for a technician to test or replace, so we only explain it and do not link to buy it.
As an Amazon Associate I earn from qualifying purchases.Affiliate disclosure