Pilot light won't ignite (message on top of unit indicates to not attempt to light pilot as is is ignited on), 0 psi registering, Has power and gas to it. Circuit breaker on. Bathrooms with hot to cold water in tubs, showers and faucets. Sinks in kitchen and laundry have hot water. Any help appreciated in advance!

We recently had our Peerless wb/wv-03 serviced and a new Beckett burned installed. The combustion tests after the new burner are showing a pretty good loss of efficiency and higher flue temp. 2021 Results 02 - 5.7% CO - 20ppm Eff - 84.9% C02 - 11.43% Flue Temp - 431 Ambient Air - 62.8 Excess Air - 34.9% 2022 Results 02 - 6.0% CO - 22ppm Eff - 85.8% C02 - 11.19% Flue Temp - 359 Ambient Air - 67.1 Excess Air - 40.2% 2023 New Burner Results 02 - 5.8% CO - 48ppm Eff - 81.4% C02 - 11.3% Flue Temp - 542 Ambient Air - 57.8 Excess Air - 35.5% The company is telling me the higher efficiency numbers from previous years are because the previous company was cheating the test and not letting the flue get up to temp. If a flue temp of 542 ok, or is it high? I agree that the higher the flue temp the lower the efficiency as more heat is just going up the flue. The Peerless is from 1996 and we were originally looking at replacing it, during the site visit the company said it looks great and the efficiency numbers are still great(looking at previous combustion test slips) and that all that is needed is a new liner and a new burner and we will be set for another 10 years easy. I thought this was great, till I saw the new combustion test results. Does this burner need a different nozzle? Does the flue draft need to be adjusted? Were the previous combustion tests just bogus and the new company is right?