The Tiffin Allegro Breeze is a 3/4 scale Class A diesel pusher, the smallest one out there. It’s convenient to drive, park, heat, and cool, It’s also less expensive.

If you’re moving up from a Class C or a small Class A and want a rear-engine diesel but don’t want the size of a 36-45 ft coach, this is a good choice.

Some of the most common problems with Tiffin Allegro Breeze are furnace malfunction, engine problems, bad brakes and water tank issues. 

But why do Tiffin Allegro Breeze problems occur? Do they show up right after buying them? How to fix the problems? In this article, I will swiftly answer all these questions. Have a few minutes? Read on! 

Problems and Solutions at a Glance

Problems with Tiffin Allegro BreezeSolutions
Furnace Stops WorkingClean gunk, reseat
Engine ProblemsReplace engine.
Bad BrakesReplace chassis, change fluid, change rubber hoses and calipers. 
Water Tank ProblemsOpen to remove air bubbles, then reinstall.

Common Tiffin Allegro Breeze Problems

Tiffin Allegro Breeze problems happen due to many reasons. Here are some of the reasons and how to solve them.

1. Furnace Stops Working:

When the furnace stops working, you naturally check the gas. Turn the burner on your stove and check if the gas is working. The stove does not turn on.

This problem may be occurring due to two reasons. Firstly, the sail switch inside the furnace may be broken. The furnace thinks the fan isn’t working. So, it won’t start. 

The blower will turn on for 5 minutes (approx.). But the air, of course, will not get warm. The Sail Switch inside the fan housing checks if there is enough air before turning on the flame. If the sail switch is gunked up or misadjusted, these problems may occur.

Another reason is when the furnace’s “over-limit switch” doesn’t work. It could get broken, causing this shut down.

The Fix:

If it’s the sail switch issue, cleaning the gunk or reseating may solve the issue. The over-limit switch problem, however, is difficult to resolve. It is a lot more difficult to reach. It would require taking the furnace out of the RV. 

The good news is that the problem is usually resolved by fixing the sail switch issue. If it does not, maybe this can help. 

2. Engine Problems:

The Tiffin Allegro Breeze uses a Cummins ISV5. 0 V8 engine. However, many owners use the 6.4-liter MaxxForce 7. The latter is used in almost all Tiffin products. 

But there are major issues with the Maxxforce 7 engine. I will start with a story of a very close friend. Ben had the RV with the same engine and here’s how the engine performed:

He always faced problems with the emissions system. Every 700 miles or so, the engine threw check engine codes and spewed a lot of smoke. Ben sent his RV to about three different International shops for repairs. 

The RV’s EGR valve, DPF, and other sensors were changed. He ran the RV for another 220 miles. This time, the check engine light came back on and diesel smoke started coming out of the car again.

Not all models are bad though. The RVs from 2013 and 2015 models use MaxForce engines with “bolt-on” emissions control systems. It sometimes performs badly. 

The most common complaints? Black smoke, soot, check engine lights, and more.  Older models (2011, 2012) and even the 2017 Breezes (32BR & 31BR; use the Cummings engine) do not have so many problems. 

The Fix:

As you got from the story, repairing rarely works. This problem will resolve with the change of engine. Switch to Cummings or the engine from the RED 37PA.

3. Bad Brakes:

According to my research, many people have reported these problems within 6 months of their purchase (approx.). When you apply the brakes, it takes a long time to work. You have to push the pedal hard too.

You may also get burning brake smells. Also, when you push the pedal. It may go almost all the way to the floor. And it will not come back on its own. You will have to use your foot to pull it back up. 

This may also cause the lights to stay on. Before pumping and pulling the brake, the light will not go off. 

Most RV owners will tell you it’s because of its weight and size. It’s usually the brake boosters going bad or have gone bad. It also may be a bad caliper. If you have the infamous P-32 chassis, then that is the culprit. 

The Fix:

First, change the chassis. Currently, the brakes are very good on the W-22 chassis. 

Because there may be air in the lines, you should bleed the brake system. This will get the air out. 

Change both front flexible rubber hoses that connect the brake calipers to the wheels. Afterward, flush out all the old brake fluid with a whole new batch of fresh brake fluid. 

You probably have dirty fluid that is full of water. This is why when the fluid gets hot, the pedal goes to the floor. You can also have a Brake Buddy put in.

4. Water Tank Problems:

A common problem is the water tank not filling. When trying to fill the freshwater tank with water, it takes a long time to fill. It doesn’t fill sometimes and just spits back the water. 

The reason prominently is a big air bubble that is stopping the water from flowing. 

The Fix:

You need to push the Air bubble out of the tank. Open the fill cap, then the tank drain. Then, start slowly filling the tank with water, taking out the hose after a few minutes. 

If you’re making progress, you’ll get a lot of burps of water coming right back at you. Stand aside while you do this. After the burps subside, close the tank drain. 

You should see the water level rise on your monitor. Make sure you know not to use “pressurized” water. Turn the hose on medium flow and take your time.

Most of the time, this only happens when the tank is empty. Such as when it’s time to de-winterize or empty it while on a trip. It’s better to keep the freshwater tank half full at all times.

What Majority of the Users Feel About Tiffin Allegro Breeze?

Most users deem the Tiffin Allegro Breeze as a small RV. It does lack space compared to other RVs. 

It will be able to go up and downhills. However, it won’t be as fast as a racehorse. It has all of its power at normal speeds and RPMs. 

They weigh 28,000 pounds with their maximum towing capacity. This has a lot less hp/lb than the family car, but it still has enough power for the job. This makes it a considerable choice for people. 

Final Thoughts

The Tiffin Allegro Breeze problems are usually easily fixed. Although the Allegro Breeze RV has inadequate space, this can rather be a benefit to some. Especially if you are looking for a budget-friendly smaller RV.

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By Ahmed